Apparatus

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sensors Mode-S transponder

A88F2E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N65003 · CESSNA 172 Skyhawk · operated by MAJOR AIR LLC

Hex
A88F2E
Octal
52107456
Decimal
11,046,702
Country
US
Tail
N65003
Type
C172
No current signal · last broadcast 1d ago
Flights observed
10
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A88F2E.

Country allocation

The ICAO 24-bit address A88F2E falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N65003 - 10 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 N65003 - Apr 13, 21:15 UTCApr 13, 21:40 UTC25m
2026-04-13 N65003 - Apr 13, 19:50 UTCApr 13, 20:00 UTC10m
2026-04-13 N65003 - Apr 13, 19:40 UTCApr 13, 20:00 UTC20m
2026-04-13 N65003 - Apr 13, 17:00 UTCApr 13, 17:10 UTC10m
2026-04-13 N65003 - Apr 13, 15:00 UTCApr 13, 15:35 UTC35m
2026-04-13 N65003 - Apr 13, 14:10 UTCApr 13, 14:25 UTC15m
2026-04-13 N65003 - Apr 13, 12:20 UTCApr 13, 13:15 UTC55m
2026-04-13 N65003 - Apr 13, 11:55 UTCApr 13, 12:15 UTC20m
2026-04-12 N65003 - Apr 12, 18:30 UTCApr 12, 18:50 UTC20m
2026-04-12 N65003 - Apr 12, 17:30 UTCApr 12, 17:45 UTC15m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N65003 page for operator, model, and routing details .

Mode-S A88F2E frequently asked

What is Mode-S code A88F2E?
A88F2E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N65003.
Where is Mode-S A88F2E registered?
Mode-S code A88F2E is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A88F2E broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A88F2E, octal 52107456, decimal 11,046,702.
What flights does A88F2E operate?
Mode-S A88F2E has broadcast 1 distinct callsign, including N65003.